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<?php
namespace Illuminate\Mail;
use Closure;
use Illuminate\Container\Container;
use Illuminate\Contracts\Filesystem\Factory as FilesystemFactory;
use Illuminate\Support\Traits\Macroable;
use RuntimeException;
class Attachment
{
use Macroable;
/**
* The attached file's filename.
*
* @var string|null
*/
public $as;
/**
* The attached file's mime type.
*
* @var string|null
*/
public $mime;
/**
* A callback that attaches the attachment to the mail message.
*
* @var \Closure
*/
protected $resolver;
/**
* Create a mail attachment.
*
* @param \Closure $resolver
* @return void
*/
private function __construct(Closure $resolver)
{
$this->resolver = $resolver;
}
/**
* Create a mail attachment from a path.
*
* @param string $path
* @return static
*/
public static function fromPath($path)
{
return new static(fn ($attachment, $pathStrategy) => $pathStrategy($path, $attachment));
}
/**
* Create a mail attachment from in-memory data.
*
* @param \Closure $data
* @param string|null $name
* @return static
*/
public static function fromData(Closure $data, $name = null)
{
return (new static(
fn ($attachment, $pathStrategy, $dataStrategy) => $dataStrategy($data, $attachment)
))->as($name);
}
/**
* Create a mail attachment from a file in the default storage disk.
*
* @param string $path
* @return static
*/
public static function fromStorage($path)
{
return static::fromStorageDisk(null, $path);
}
/**
* Create a mail attachment from a file in the specified storage disk.
*
* @param string|null $disk
* @param string $path
* @return static
*/
public static function fromStorageDisk($disk, $path)
{
return new static(function ($attachment, $pathStrategy, $dataStrategy) use ($disk, $path) {
$storage = Container::getInstance()->make(
FilesystemFactory::class
)->disk($disk);
$attachment
->as($attachment->as ?? basename($path))
->withMime($attachment->mime ?? $storage->mimeType($path));
return $dataStrategy(fn () => $storage->get($path), $attachment);
});
}
/**
* Set the attached file's filename.
*
* @param string|null $name
* @return $this
*/
public function as($name)
{
$this->as = $name;
return $this;
}
/**
* Set the attached file's mime type.
*
* @param string $mime
* @return $this
*/
public function withMime($mime)
{
$this->mime = $mime;
return $this;
}
/**
* Attach the attachment with the given strategies.
*
* @param \Closure $pathStrategy
* @param \Closure $dataStrategy
* @return mixed
*/
public function attachWith(Closure $pathStrategy, Closure $dataStrategy)
{
return ($this->resolver)($this, $pathStrategy, $dataStrategy);
}
/**
* Attach the attachment to a built-in mail type.
*
* @param \Illuminate\Mail\Mailable|\Illuminate\Mail\Message|\Illuminate\Notifications\Messages\MailMessage $mail
* @param array $options
* @return mixed
*/
public function attachTo($mail, $options = [])
{
return $this->attachWith(
fn ($path) => $mail->attach($path, [
'as' => $options['as'] ?? $this->as,
'mime' => $options['mime'] ?? $this->mime,
]),
function ($data) use ($mail, $options) {
$options = [
'as' => $options['as'] ?? $this->as,
'mime' => $options['mime'] ?? $this->mime,
];
if ($options['as'] === null) {
throw new RuntimeException('Attachment requires a filename to be specified.');
}
return $mail->attachData($data(), $options['as'], ['mime' => $options['mime']]);
}
);
}
/**
* Determine if the given attachment is equivalent to this attachment.
*
* @param \Illuminate\Mail\Attachment $attachment
* @param array $options
* @return bool
*/
public function isEquivalent(Attachment $attachment, $options = [])
{
return with([
'as' => $options['as'] ?? $attachment->as,
'mime' => $options['mime'] ?? $attachment->mime,
], fn ($options) => $this->attachWith(
fn ($path) => [$path, ['as' => $this->as, 'mime' => $this->mime]],
fn ($data) => [$data(), ['as' => $this->as, 'mime' => $this->mime]],
) === $attachment->attachWith(
fn ($path) => [$path, $options],
fn ($data) => [$data(), $options],
));
}
}
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